Ellen's Oscar selfie is now the most popular tweet in history

It's the Oscars, and it's 2014, so this happened. Host Ellen DeGeneres took a selfie with too many stars to count—hey, Brad Pitt! Julia Roberts! Best actor in a supporting role Jared Leto! Best actress in a supporting role Lupita Nyong'o!—and asked Twitter to turn it into the most retweeted tweet in tweet history.